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#
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# LUFA Library
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# Copyright (C) Dean Camera, 2013.
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#
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# dean [at] fourwalledcubicle [dot] com
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# www.lufa-lib.org
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#
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# --------------------------------------
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# LUFA Project Makefile.
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# --------------------------------------
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# Run "make help" for target help.
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MCU = at90usb1287
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ARCH = AVR8
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BOARD = USBKEY
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F_CPU = 8000000
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F_USB = $(F_CPU)
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OPTIMIZATION = s
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TARGET = BootloaderMassStorage
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SRC = $(TARGET).c Descriptors.c BootloaderAPI.c BootloaderAPITable.S Lib/SCSI.c Lib/VirtualFAT.c $(LUFA_SRC_USB) $(LUFA_SRC_USBCLASS)
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LUFA_PATH = ../../LUFA
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CC_FLAGS = -DUSE_LUFA_CONFIG_HEADER -IConfig/ -DBOOT_START_ADDR=$(BOOT_START_OFFSET)
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LD_FLAGS = -Wl,--section-start=.text=$(BOOT_START_OFFSET) $(BOOT_API_LD_FLAGS)
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# Flash size and bootloader section sizes of the target, in KB. These must
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# match the target's total FLASH size and the bootloader size set in the
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# device's fuses.
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FLASH_SIZE_KB = 128
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BOOT_SECTION_SIZE_KB = 8
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# Bootloader address calculation formulas
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# Do not modify these macros, but rather modify the dependent values above.
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CALC_ADDRESS_IN_HEX = $(shell printf "0x%X" $$(( $(1) )) )
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BOOT_START_OFFSET = $(call CALC_ADDRESS_IN_HEX, ($(FLASH_SIZE_KB) - $(BOOT_SECTION_SIZE_KB)) * 1024 )
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BOOT_SEC_OFFSET = $(call CALC_ADDRESS_IN_HEX, ($(FLASH_SIZE_KB) * 1024) - ($(strip $(1))) )
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# Bootloader linker section flags for relocating the API table sections to
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# known FLASH addresses - these should not normally be user-edited.
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BOOT_SECTION_LD_FLAG = -Wl,--section-start=$(strip $(1))=$(call BOOT_SEC_OFFSET, $(3)) -Wl,--undefined=$(strip $(2))
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BOOT_API_LD_FLAGS = $(call BOOT_SECTION_LD_FLAG, .apitable_trampolines, BootloaderAPI_Trampolines, 96)
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BOOT_API_LD_FLAGS += $(call BOOT_SECTION_LD_FLAG, .apitable_jumptable, BootloaderAPI_JumpTable, 32)
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BOOT_API_LD_FLAGS += $(call BOOT_SECTION_LD_FLAG, .apitable_signatures, BootloaderAPI_Signatures, 8)
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# Check if the bootloader needs an AUX section, located before the real bootloader section to store some of the
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# bootloader code. This is required for 32KB and smaller devices, where the actual bootloader is 6KB but the maximum
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# bootloader section size is 4KB. The actual usable application space will be reduced by 6KB for these devices.
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ifeq ($(BOOT_SECTION_SIZE_KB),8)
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CC_FLAGS += -DAUX_BOOT_SECTION='' -DAUX_BOOT_SECTION_SIZE=0
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else
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AUX_BOOT_SECTION_KB = (6 - $(BOOT_SECTION_SIZE_KB))
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CC_FLAGS += -DAUX_BOOT_SECTION='__attribute__((section(".boot_aux")))' -DAUX_BOOT_SECTION_SIZE='($(AUX_BOOT_SECTION_KB) * 1024)'
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LD_FLAGS += -Wl,--section-start=.boot_aux=$(call BOOT_SEC_OFFSET, (($(BOOT_SECTION_SIZE_KB) + $(AUX_BOOT_SECTION_KB)) * 1024 - 16))
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LD_FLAGS += $(call BOOT_SECTION_LD_FLAG, .boot_aux_trampoline, Boot_AUX_Trampoline, ($(BOOT_SECTION_SIZE_KB) + $(AUX_BOOT_SECTION_KB)) * 1024)
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endif
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# Default target
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all:
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# Include LUFA build script makefiles
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include $(LUFA_PATH)/Build/lufa_core.mk
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include $(LUFA_PATH)/Build/lufa_sources.mk
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include $(LUFA_PATH)/Build/lufa_build.mk
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include $(LUFA_PATH)/Build/lufa_cppcheck.mk
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include $(LUFA_PATH)/Build/lufa_doxygen.mk
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include $(LUFA_PATH)/Build/lufa_avrdude.mk
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include $(LUFA_PATH)/Build/lufa_atprogram.mk
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